McLaren is set to make Californians drool when the latest track-only McLaren MP4-12C Can-Am Edition concept car makes its first appearance outside of Europe at this weekend's Pebble Beach Concours d'Elegance.

The one-off design study is a hardcore version of the British supercar based on the McLaren MP4-12C GT3 racecar and shares the same carbonfibre chassis as the street-legal road car.

The McLaren 12C Can-Am Edition concept weighs in at 1200kg (100kg less than the standard car) and sports not only a custom aerodynamic package that provides 30 per cent more downforce but a tweaked version of the existing twin-turbocharged 3.8-litre V8 now reaching 470kW - 10kW more than the recently announced no-cost power upgrade.

Weight has been cut from the car through the extensive use of carbonfibre, with the material featuring on the badges, wing mirrors, side radiator vanes, engine cover, front spoiler, front canards, rear diffuser and the significant wing taking pride of place on the rear of the car.